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Posted on Mar 28, 2009
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Decreased water flow from Moen shower faucet

My one knob moen shower faucet is experiencing reduced flow.  This has occured gradually over time.  Is it possible that I need to replace the cartridge unit in the valve?  Are there any other things I should look for?  The knob pulls out and goes back in smoothly, has full range of twist to hot and cold, and I've taken off the knob and removed the cover plate.  There are no leaks and the valve body looks fine.
thanks!

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  • mchoward33 Mar 29, 2009

    I should have mentioned that the reduced flow is the same from the showerhead and the tub fixture; both have reduced flow.

  • mchoward33 Mar 30, 2009

    no.  also, water pressure to other upstairs bath is fine

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  • Expert 63 Answers
  • Posted on Mar 29, 2009
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I would bet it's not the faucet at all, it's the showerhead. Remove it and look inside the hole, there is probably sediment built up in there.
Just clean it out and reinstall.

Please rate if this helps-

  • Anonymous Mar 30, 2009

    Do you have a whole house water filter installed?

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